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Finding the Fourth Proportional to 68,913.65, 95,109.66 and 42,050.48

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Solution

The fourth proportional to 68,913.65, 95,109.66 and 42,050.48 is: 58,035.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,913.65 : 95,109.66 = 42,050.48 : x
  2. Step 2: Convert to fraction form
    68,913.65/95,109.66 = 42,050.48/x
  3. Step 3: Cross multiply
    68,913.65x = 95,109.66 × 42,050.48
  4. Step 4: Simplify right side
    68,913.65x = 3,999,406,380.09
  5. Step 5: Solve for x
    x = 3,999,406,380.09/68,913.65
  6. Step 6: Final answer
    x = 58,035.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.